diff --git a/contrib/auto_explain/t/001_auto_explain.pl b/contrib/auto_explain/t/001_auto_explain.pl
index 7f394ed292b..54fa152cc08 100644
--- a/contrib/auto_explain/t/001_auto_explain.pl
+++ b/contrib/auto_explain/t/001_auto_explain.pl
@@ -172,7 +172,7 @@ GRANT SET ON PARAMETER auto_explain.log_format TO regress_user1;
 
 	like(
 		$log_contents,
-		qr/WARNING:  permission denied to set parameter "auto_explain\.log_level"/,
+		qr/WARNING: ( 42501:)? permission denied to set parameter "auto_explain\.log_level"/,
 		"permission failure logged");
 
 }    # end queries run as regress_user1